When may anti-collision lights be turned off during flight?

Anti-collision lights are primarily designed to enhance the visibility of an aircraft to others, especially in situations where collisions may occur. The correct response indicates that anti-collision lights may be turned off when flying through clouds due to light reflection. When operating in cloud cover, the lighting conditions can cause significant glare and reflections that may hinder not just the pilot's visibility but also create confusing visual cues.

In these scenarios, turning off the anti-collision lights can help reduce distraction and improve situational awareness for the pilot while still ensuring that the aircraft's navigation and strobe lights (if required by regulations) remain operational. This is crucial for safety, especially during instrument conditions where visual references outside the aircraft are limited. The ability to improve clarity during flight is key, particularly when navigating through challenging weather conditions like clouds.